From: Albert ARIBAUD <albert.u.boot@aribaud.net>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/3] ARM: use r9 for gd
Date: Mon, 12 Aug 2013 16:44:06 +0200 [thread overview]
Message-ID: <20130812164406.5a6807e7@lilith> (raw)
In-Reply-To: <20130812055315.DA080380DFA@gemini.denx.de>
Hi Wolfgang,
On Mon, 12 Aug 2013 07:53:15 +0200, Wolfgang Denk <wd@denx.de> wrote:
> Dear Jeroen Hofstee,
>
> In message <1376254719-15594-4-git-send-email-jeroen@myspectrum.nl> you wrote:
> > To be more EABI compliant and as a preparation for building
> > with clang, use the platform-specific r9 register for gd
> > instead of r8.
> >
> > note: The FIQ is not updated since it is not used in u-boot,
> > and under discussion for the time being.
> >
> > The following checkpatch warning is ignoredL
> > WARNING: Use of volatile is usually wrong: see
> > Documentation/volatile-considered-harmful.txt
> >
> > Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
> > ---
> > arch/arm/config.mk | 2 +-
> > arch/arm/include/asm/global_data.h | 2 +-
> > arch/arm/lib/crt0.S | 16 ++++++++--------
> > 3 files changed, 10 insertions(+), 10 deletions(-)
>
> IIRC, r9 is used as GOT pointer ?
No, it is not, well, not any more since GOT-based relocation was
replaced by ELF relocation, which requires no reserved register.
> In any case, please also update the README section of register usage
> on ARM.
>
> Best regards,
>
> Wolfgang Denk
>
Amicalement,
--
Albert.
next prev parent reply other threads:[~2013-08-12 14:44 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-11 20:58 [U-Boot] [PATCH 0/3] ARM: use r9 for gd instead of r8 Jeroen Hofstee
2013-08-11 20:58 ` [U-Boot] [PATCH 1/3] ARM: make reserving the gd register a make variable Jeroen Hofstee
2013-08-11 20:58 ` [U-Boot] [PATCH 2/3] ARM,relocate: do not use r9 Jeroen Hofstee
2013-08-11 20:58 ` [U-Boot] [PATCH 3/3] ARM: use r9 for gd Jeroen Hofstee
2013-08-12 5:53 ` Wolfgang Denk
2013-08-12 14:44 ` Albert ARIBAUD [this message]
2013-08-12 15:23 ` Wolfgang Denk
2013-08-13 19:41 ` Jeroen Hofstee
2013-08-11 22:08 ` [U-Boot] [PATCH 0/3] ARM: use r9 for gd instead of r8 Benoît Thébaudeau
2013-08-12 5:49 ` Albert ARIBAUD
2013-08-13 19:36 ` Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 0/4] " Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 1/4] ARM: make reserving the gd register a make variable Jeroen Hofstee
2013-08-17 13:55 ` Jeroen Hofstee
2013-09-19 6:57 ` Albert ARIBAUD
2013-09-19 16:54 ` Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 2/4] ARM,relocate: do not use r9 Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 3/4] ARM: use r9 for gd Jeroen Hofstee
2013-08-17 9:40 ` Jeroen Hofstee
2013-08-17 13:51 ` Jeroen Hofstee
2013-08-19 3:08 ` Simon Glass
2013-08-19 17:32 ` Jeroen Hofstee
2013-08-21 16:22 ` Jeroen Hofstee
2013-08-21 23:44 ` Simon Glass
2013-08-14 18:25 ` [U-Boot] [PATCH v2 4/4] README: update ARM register usage Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 0/3] ARM: use r9 for gd instead of r8 Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 1/3] ARM,relocate: do not use r9 Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 2/3] ARM: use r9 for gd Jeroen Hofstee
2013-09-21 15:30 ` Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 3/3] README: update ARM register usage Jeroen Hofstee
2013-09-23 16:56 ` [U-Boot] [PATCH v3 0/3] ARM: use r9 for gd instead of r8 Albert ARIBAUD
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